Ziegler W <br/><br/>
Catalogue of conodonts 

 -  1975 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>52388 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Palaeozoic<br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H52, L5